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. 2014 Sep 12;9(9):e106969. doi: 10.1371/journal.pone.0106969

Figure 5. Effect of proton pump inhibitor on sleep disturbances in rats with reflux esophagitis.

Figure 5

(A) Typical polygraphic recordings of the on-PPI group and the post-PPI group. (B) Amount of each stage for the 3 groups (pre-PPI group, on-PPI group, and post-PPI group) in the 12-h light period. (C) Number of NREM sleep bouts for the 3 groups in the 12-h light period. (D) Duration of each stage for the 3 groups in the 12-h light period. (E) Stage transitions for the 3 groups during the 12-h light period. N = 7. Data are mean ± SEM. *p<0.05 versus before PPI group. **p<0.01 versus before PPI group.